ESP32 SIM800L Project for vending machine
€250-750 EUR
Paid on delivery
I am currently working with a vending system and basically need to know remotely how many coins have already been inserted for statistical and consumable management purposes.
There is a coin selector that only works with 1 pc of 1€ coin ([login to view URL]) which is connected to the main vending module through 3 wires: Red (12V), Black (GND) and White (Coin Signal Output).
Whenever a coin accepted by the coin selector is placed, a voltage of 12V is passed for about 1 second through the White wire, so the ESP32 should detect that pulse. The idea would be to place the equipment connected to the white wire and to react to the insertion of the coin with an SMS to a real time database.
I think that for this case the most suitable and cheap would be the ESP32 SIM800L But I amm open to suggestions.
The project must include all the software needed for ESP32+Database (preferably exportable to excel or similar) making it workable.
Project ID: #24107436
About the project
25 freelancers are bidding on average €488 for this job
We are a team of Electrical and Electronics engineers and we are Excellent in the following areas: • Embedded C Programming. • VHDL/Verilog, LABView • Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC and STM More
Hi! It's absolutely no problem to make your idea work. I have experience in ESP32 device design, both hardware and software, so I can help you with your project. We can discuss more details via chat. Thanks
Easy project for me. I can make a simple online database which records date and time of every coin inserted. Excel file download is a nice option. From the excel you can make any statistics you want
Hey There, We're Industrial Professionals with having more than 5 years of wide experiences in Robotics with enabled IoT, various Electronic circuitry (Low and High Power Electronic circuits), Communication (BLE, RF Mo More
Hello, how are you? I hope you have a bright day/evening from your side. I DO NOT OUTSOURCE I have been a freelancer for the past 8 years, I believe that my experience and skill in this background will prove to be of g More
Hello, I am interested in your project and I hope to help you realize it, I am passionate about electronics and embedded development and I hope to share with you my knowledge and experience. I can do this work in 7 da More
Dear Sir/Madam, Having reviewed your project brief, I write to express my interest in your project. I have the relevant skills and experience to deliver to you high quality work. Kindly reach me via chat for detailed d More
Hey! I think I might just be the right guy for your job. I have experience in the Arduino and micro-controllers field, and I think I can get this done for you. Let me know for more info on this.
I have manufactured and sold products surveillance and control device by SMS using ESP32 + SIM800L. If you need my help, please inbox me. If you need to authenticate please inbox me, I will send the product image, a p More
Hi! I like your project and I am sure I can deliver. I have a lot of experience with ESP32 and I can help you with this, make suggestions and improve the design, let me know if you want to discuss this.
Im a software engineer working actively on industrial internet of things domain. So i can make your request working smoothly. There is a question, is it possible to use data package? Why you want to use SMS?
Dear project owner, I am doing a lot of ESP32 projects all the time, therefore I can offer you a finished working solution. My offer includes: - 2 suggestions on the final concept to be discussed and to choose from - More